Disk for a medical testing machine



FIG. 1 is a top perspective view of a disk for a medical testing machine;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left-side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is another top perspective view thereof;

FIG. 9 is an enlarged view thereof taken at lines 9a-9a′, 9b-9b′ of FIG. 8; and,

FIG. 10 is a bottom perspective view thereof. 

The ornamental design for a disk for a medical testing machine, as shown and described. 